Which structure delivers a signal from the motor neuron to all the sarcomeres of a muscle cell?
A) T tubule B) sarcoplasmic reticulum
C) myosin filament D) filaments-line
Answer: A
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A dikaryotic cell:
A. has only one haploid nucleus B. has only one diploid nucleus C. has two diploid nuclei D. has two haploid nuclei E. has one haploid nucleus and one diploid nucleus
All of the following are true statements about the lymphatic system EXCEPT that
A) the lymphatic system transports carbohydrates from the small intestine to the blood. B) the lymphatic system returns fluids to the bloodstream. C) lymphatic vessels resemble veins because they have valves. D) the lymphatic system helps defend the body against disease.
Different cell lineages express different subsets of genes, resulting in _____.
A. epigenetics B. selective genetics C. differentiation D. morphogenic E. assimilation
Replication
What will be an ideal response?